Abrasive sharpener



FIG. 1 is a front perspective view of the design for an abrasive sharpener of the invention;

FIG. 2 is a front elevational view of the abrasive sharpener of FIG. 1;

FIG. 3 is a right side elevational view, viewing FIG. 2, of the abrasive sharpener of FIG. 1;

FIG. 4 is a rear elevational view of the abrasive sharpener of FIG. 1;

FIG. 5 is a left side elevational view, viewing FIG. 2, of the abrasive sharpener of FIG. 1;

FIG. 6 is a top plan view of the abrasive sharpener of FIG. 1; and,

FIG. 7 is a bottom plan view of the abrasive sharpener of FIG. 1.

The broken lines in FIGS. 4, 6, and 7 illustrate features that form no part of the claimed design. 

The ornamental design for an abrasive sharpener, as shown and described. 